Lubricator attachment for wheel-hubs.



W. P. FEHGUSSN. LUBRIGA'LUR ATTACHMENT FOR WHEEL HUBS.

Patened Aug. 20, l9`0l.

(Application filed June 3, 1901.)

(mi Modell.)

WH es'as Nrrnn dramas artnr ritieni l TVILLIAM P. FEGUSSON, OF COLORADO,TEXAS'.

LUBRICATOR ATTACHMENT FOR WHEEL-HUBS.

SPECIFICATION forming part of Letters Eatent No. 680,850, dated August20, 1901.

Application led .Tune 3, 1901.

To all whom t may concern.-

Be it known that I, WILLIAM P. FERGUS- SON, a citizen of the UnitedStates, residing at Colorado, in the county of Mitchell and State ofTexas, have invented a new and useful Lubricator Attachment forVVheel-Hubs, of which the following is a specification.

This invention relates to lubricators for the axles of buggies, wagons,and other vehicles; and it consists in the construction, combination,and arrangement of parts, as hereinafter shown and described, andspecifically pointed out in the claims.

In the drawings, Figure l is a longitudinal sectional elevation. Fig. 2isa transverse sectional elevation. Fig. 3 is a plan view of a portionof the hub at the point where the lubricator is inserted. Figs. 4 and 5are perspective details of the plug and screw-pin parts of the device.

This invention may be applied to any form of buggy, Wagon, or carriagehub, and for the purpose of illustration I have shown it applied to anordinary form of hub l.

The improvement consists in a metal plug 2, screw-threaded on itsexterior at the outer part, as at 3, and preferably reduced in size atthe lower part 4 and adapted to be fitted into a cavity formed for itthrough the hub, preferably in the rear of the spokes, with the lowerend of the plug passing through the lining 5 of the hub or endingopposite a perforation through the lining. The screwthreads on theexterior of the plug 2 will be formed-with special reference to engagingthe wood of the hub, so as to be firmly embedded therein, and the plugwill be formed slightly projecting beyond the outer surface of the huband with the projecting part square or oblong, as at 6, to provide forreceiving a wrench, whereby the plug may be inserted and removed. Aperforation is formed centrally through the whole length of the plug,this perforation being internally screwthreaded at the outer part andadapted to receive a stud 7, the stud having a screwthreaded portion 8to engage the screwthreaded part of the perforation through the plug 2,and with a cylindical portion 9 adapted to engage the unthreaded part ofthe perforation. The stud thus completely ills the perforation throughthe plug. The outer end Serial No. 63,015. (No model.)

of the stud is formed with an enlarged square head l0 to afford meansfor the action of a wrench to insert and remove the stud.

To protect the plug 2 and also to form a lock thereto to prevent it fromWorking loose, a plate 1l is secured over the outside of the plug andextended at the ends to provide for its being secured to the hub, as byscrews 12, and with a square central perforation 13 engaging the portion6 of the plug. The plate 1l will preferably be formed thicker at thepoint where the perforation 13 occurs, so as to strengthen the platewhere the greatest strains occur. The plate ll will project sufficientlybeyond the plug 2 and engage the surface of the hub immediately aroundthe plug closely enough to effectually prevent the entrance of moisturebetween the plug and the part of the hub with which it engages, so thatno danger exists of the deterioration of the hub from that source. Thisis an important feature of my invention and eifectually overcomes anyobjection that might exist to forming cavities through the hub. By thissimple arrangement a lubricating material may be inserted Jthrough theperforation in the plug 2 and find its way to the axle-bearing andwithout removing the wheel.

If the lubricating material is a liquid, it will freely iiow into theinterstices between the axle and hub lining; but if any of the semisolidlubricating compounds are employed, then the perforation in the plug 2will be filled with the compound and the stud 7 utilized to force thecompound down yagainst the axle when set down into its seat in theperforation in the plug.

Thus a very complete, simple, and convenient device is produced, whichprovides for lubricating the vehicle in a very thorough manner and withvery little trouble and without the necessity of removing the wheel fromthe axle.

What I claim as new isl. In a device of the class described, a plugfitting through the hub transversely of the axle-bearing and having theouter end proj ecting and formed with means for attaching a wrench orother operative implement and with a longitudinal aperture through theplug, a plate fitting the hub closely around said plug and with anaperture engaging said wrench- IOO receiving means, and a closure forsaid aperture in saidfplugsubstantially as shown and described.

2. In a device of the class described, a plug having a square or oblongouter end and screwthreaded exteriorly and interiorly at its upper part,and having a hollow cylindrical portion forming its lower part, a studhaving a screw-threaded upper part and a 4 cylindrical lower part andadapted to engage the interior of said plug, and a plate fitting saidhub closely around said plug and having an aperture engaging said squareor oblong projection on said plug, substantially as shown and described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

WILLIAM P. FERGUSSON.

Witnesses:

H. W. HALL, L. E. LAssETER.

